title: The structural basis for RNA specificity and Ca2+ inhibition of an RNA-dependent RNA polymerase.
mesh_terms: D017126:Bacteriophage phi 6 / Q000737:chemistry*; D001665:Binding Sites; D002118:Calcium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008274:Magnesium / Q000737:chemistry; D008958:Models, Molecular; D012330:RNA, Double-Stranded / Q000737:chemistry*; D012367:RNA, Viral / Q000737:chemistry*; D012324:RNA-Dependent RNA Polymerase / Q000737:chemistry*
chemical_list: D012330:RNA, Double-Stranded; D012367:RNA, Viral; D012324:RNA-Dependent RNA Polymerase; D008274:Magnesium; D002118:Calcium